The meteoric rise of A&M's 'Johnny Football'

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Texas A&M quarterback Johnny Manziel (2) signals that the play in review was a touchdown during the first quarter of a college football game at Bryant-Denny Stadium, Saturday, Nov. 10, 2012, in Tuscaloosa. ( Karen Warren / Houston Chronicle ) (Houston Chronicle)

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Texas A&M quarterback Johnny Manziel (2) signals that the play in review was a touchdown during the first quarter of a college football game at Bryant-Denny Stadium, Saturday, Nov. 10, 2012, in Tuscaloosa. ( Karen Warren / Houston Chronicle ) (Houston Chronicle)